Can punch



Feb. 4, F. BRENNER v CAN PUNCH Filed Jan. 26, 1955 WITNESSES: I N VENTOR: g fi. W F/EDEE/CK M6 BEEN/v52 WM l- 1..

ATTORNEY Patented Feb. 4, 1936 i 'redcrick W. Brenner, Philadelphia, E a

Application January 26, 1935, ficriall No. 3,57%

4. tllairns.

This invention relates to can punches and has for an object to providean implement especially adapted for punching out the preformedsemipunched holes common in can tops; but the invention is not limitedto that utility.

A further object of the invention is to provide an implement havingpunches of improved form properly spaced to correspond to preformedsemipunched holes in can tops.

A further object of the invention is to provide an implement havingpunches thereon formed as segments adapted to complete the punching ofpartially punched openings or to punch complete openings not previouslypunched.

A further object of the invention is to provide an implement comprisinga plate of material having punch members punched therefrom, allextending in properly arranged order upon one side of the plate, saidindividual punches being segmental with edges adapted to cut sheet metaland with the extreme sides, that is to say, the side adjacent to theperimeter of the plate, long and pointed.

The invention therefore comprises a handle member having a plate securedthereto, said plate being punched from the side contiguous to the handleto form punch members extending upon the opposite side, each of saidmembers being pro duced by a draw punch which cuts and punches membersto form points upon the external side of the circle or other form uponwhich said punch members are arranged with segments having cutting edgesextending from said points throughout the major part of a circle.

In the drawing, Figure l. is a view'oi the implement in side elevation.

Figure 2 is a view of the utensil in end elevation.

Figure 3 is a perspective view of one of the punch members.

Figure 4 is a view, on a greatly enlarged scale, of one of the punchmembers in side elevation.

Figure 5 is a view, on a greatly enlarged scale, of one of the punchmembers in substantially diametrical section.

Like characters of reference indicate corresponding parts throughout theseveral views.

The improved can punch which forms the subject matter of the presentapplication, comprises a handle ill of any convenient form or contourand the particular shape or design of the handle as shown at Figure 1 inthe present drawing is to be considered as no limitation upon theinvention.

Attached to the handle it is a plate I! l oi such material as willproduce the necessary punching eiiiciency. At the present time, steelwould be considered the desirable material but the invention is in noway limited thereto. This plate ii is secured to the handle it in anyapproved manner. In Figure 2 a screw i2 is shown for the purpose butthis is purely illustrative and not a limitation.

The plate it is provided with a plurality of punch members it}, allextending upon one side of the plate and arranged in some pattern. AtFigure 2 these punches are shown as arranged upon a circle whichcorresponds generally to the form oi the semi-punched openingsordinarily found in cans of commerce, but the form is not limited to acircle and may assume any shape found necessary or desirable.

These punch members it are formed by punching from the plate ii, theopenings i l indicating the spaces from which they have been projectedin the press. They are formed segmentally, when so produced by a roundpunch, such segmental iorm being shown more particularly at Figure 3.The punching will have a drawing effect whereby a relatively sham pointit is produced with the sides it so drawn to an edge by the punch as toform also cutting edges.

Some index, as the arrow H, on the handle ill is provided so that theposition or the punch points it may be determined by the view fromabove. When used with can tops of semi-punched parts, the index 5? willproperly position at least one of the punches relative to one of thesemipunched parts, the other punch members being placed thereby in suchposition that a sharp blow by the hand or another implement upon the endof the handle will force the several punches through these semi-punchedopenings to simultaneously punch out all of said openings and open thecan for sifting purposes.

It is obvious that with the punch members reduced to relatively sharpedges or points, like effect may be had when the can has not beenpreviously punched.

Of course, the can punch illustrated may be modified and changed invarious ways without departing from the invention herein set forth andhereinafter claimed.

I claim:

l. A can punch comprising a handle, a plate attached to the handle thepoint of attachment being centrally of the plate, and a series of punchmembers extending upon the side of the plate opposite the handle, withthe pressure from the having Pointed and inclined sides. laid Punchmembers being drawn lrom the plate.

4. A can punch comprising a plate having a plurality of punch membersextending from one side thereof, each of said punch members beingdefined by a circular opening in the plate along the edge of which thepunch member is integrally connected with the plate and formed as ahollow segment having a point at its outer side and having sides taperedfrom said point inwardly.

FREDERICK W. BRENNER.

